Modelling injoke alert! For Halloween, Kate Moss went as Cara Delevingne – wearing the younger model’s uniform of hoodie, round sunglasses, beanie and trainers, accessorised with a cheeky dab of white powder on her nose (a nod from one fashion drug scandal survivor to another). And, lo, with a quick rummage in her wardrobe and five minutes to get dressed, Moss arguably beat all the celebs feverishly Instagramming images of themselves dressed as everything from a Cheeto (Katy Perry) to a Teenage Mutant Ninja Turtle (Rihanna). Forget the face paint. It’s the simplest things – like a little bit of self-raising flour – that make the best Halloween gags.